/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0B0F1A;
  --surface: #111827;
  --surface-2: #1a2235;
  --border: #1e2a3d;
  --accent: #00E5FF;
  --accent-dim: rgba(0, 229, 255, 0.08);
  --text: #E8EDF5;
  --text-muted: #6B7A94;
  --text-dim: #3D4F6A;
  --success: #00E87A;
  --font-display: 'Outfit', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 40px;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  background: rgba(11, 15, 26, 0.8);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--text);
}

.nav-badge {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(0, 229, 255, 0.2);
  padding: 3px 8px;
  border-radius: 4px;
}

/* ===== HERO ===== */
.hero {
  display: flex;
  align-items: flex-start;
  padding: 100px 40px 60px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: -200px;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.hero-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-label::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--accent);
}

.hero-headline {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(3rem, 7vw, 5.5rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 28px;
  max-width: 780px;
}

.hero-sub {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 48px;
}

/* Terminal block */
.hero-terminal {
  background: #080B12;
  border: 1px solid var(--border);
  border-radius: 10px;
  max-width: 640px;
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(0, 229, 255, 0.05);
}

.terminal-bar {
  background: #0D1117;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}
.dot-red { background: #FF5F57; }
.dot-yellow { background: #FEBC2E; }
.dot-green { background: #28C840; }

.terminal-title {
  margin-left: 10px;
  font-family: 'DM Mono', 'Courier New', monospace;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.terminal-body {
  padding: 20px 22px;
}

.terminal-prompt {
  color: var(--accent);
  font-family: 'DM Mono', 'Courier New', monospace;
  font-size: 0.9rem;
  margin-right: 8px;
}

.terminal-hint {
  color: var(--text-muted);
  font-family: 'DM Mono', 'Courier New', monospace;
  font-size: 0.9rem;
}

.terminal-cursor {
  display: inline-block;
  width: 8px;
  height: 16px;
  background: var(--accent);
  vertical-align: middle;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.terminal-response {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.terminal-done {
  font-family: 'DM Mono', 'Courier New', monospace;
  font-size: 0.82rem;
  color: var(--text-dim);
  padding-left: 24px;
  position: relative;
}

.terminal-done::before {
  content: '↳';
  position: absolute;
  left: 4px;
  color: var(--text-dim);
}

.terminal-success {
  font-family: 'DM Mono', 'Courier New', monospace;
  font-size: 0.82rem;
  color: var(--success);
  padding-left: 24px;
  position: relative;
  margin-top: 4px;
}

.terminal-success::before {
  content: '✓';
  position: absolute;
  left: 4px;
  color: var(--success);
}

/* ===== CAPABILITIES ===== */
.capabilities {
  padding: 100px 40px;
  border-top: 1px solid var(--border);
}

.cap-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.cap-header {
  margin-bottom: 60px;
}

.cap-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 2.75rem);
  letter-spacing: -0.025em;
  margin-bottom: 16px;
  line-height: 1.2;
}

.cap-desc {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 480px;
  line-height: 1.7;
}

.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.cap-card {
  background: var(--surface);
  padding: 32px;
  transition: background 0.2s;
}

.cap-card:hover {
  background: var(--surface-2);
}

.cap-icon {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  background: var(--accent-dim);
  border: 1px solid rgba(0, 229, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 20px;
}

.cap-card-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
  color: var(--text);
}

.cap-card-body {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ===== HOW ===== */
.how {
  padding: 100px 40px;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.how-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.how-header {
  margin-bottom: 64px;
}

.how-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 2.75rem);
  letter-spacing: -0.025em;
}

.how-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}

.how-steps::before {
  content: '';
  position: absolute;
  top: 24px;
  left: 40px;
  right: 40px;
  height: 1px;
  background: var(--border);
  z-index: 0;
}

.step {
  padding-right: 40px;
  position: relative;
  z-index: 1;
}

.step-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.75rem;
  color: var(--accent);
  background: var(--surface);
  border: 1px solid var(--border);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

.step-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 8px;
}

.step-body {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ===== CLOSING ===== */
.closing {
  padding: 120px 40px;
  border-top: 1px solid var(--border);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.closing::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(0, 229, 255, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

.closing-inner {
  position: relative;
  z-index: 1;
}

.closing-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(0, 229, 255, 0.25);
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 28px;
  background: var(--accent-dim);
}

.closing-headline {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.5rem, 5.5vw, 4.5rem);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 20px;
}

.closing-sub {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 480px;
  margin: 0 auto;
}

/* ===== FOOTER ===== */
.footer {
  padding: 40px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
}

.footer-tagline {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer-meta {
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .cap-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .how-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }

  .how-steps::before { display: none; }
}

@media (max-width: 640px) {
  .hero { padding: 80px 24px 40px; }
  .capabilities { padding: 80px 24px; }
  .how { padding: 80px 24px; }
  .closing { padding: 80px 24px; }
  .footer { padding: 32px 24px; }

  .cap-grid {
    grid-template-columns: 1fr;
  }

  .how-steps {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}